42.—The ground is wet .—It must have just rained , _____________ ?
A . hasn’t it B . didn’t it C . mustn’t it D . isn’t it
人气：348 ℃ 时间：2019-12-10 13:22:40
解答
这里的 must have rained是 must + 完成时态,
表示肯定地猜测,理解为 一般过去时,就是rained
所以,答案B
肯定猜测：must be
可能猜测：may be
不可能：can't be
这三个用于一般现在时
推荐
- It must have rained last night,__ the ground is wet .
- The ground is wet,it must have rained yesterday.
- The ground is wet ,so it must have rained last night,（
- it must have rained last night,__the ground is wet this morning.
- it must have rained last night,_____the ground is wet here and there
- 点A（-2,0）和B（2,0）,且动点P使PA垂直于PB,求P的轨迹方程
- 测量学中后视减前视是不是高差?
- 酶、ATP都与新陈代谢有关,两者的合成有什么关系?
猜你喜欢
